Been trying for ages now, and it seems like its not just the IPs from bbc.co.uk and bbci.co.uk - there are subsequent connections triggered that appear to go to random non bbc domains (edigitalsurvey, iperceptions etc). Has anyone got this working?
Objective is to properly capture all the IPs into a dst-adrslist for marking, then subsequent tunneling. This would enable transparent iPlayer use from my LAN from any device, while leave all non iPlayer traffic alone.
Interesting idea and no reply yet 
I have been using get-iplayer Home · get-iplayer/get_iplayer Wiki · GitHub for a while
and some of the contend is downloaded from their partner CDN sites:
https://vod-sub-uk-live.akamaized.net
https://vod-dash-uk-live.akamaized.net
http://vod-hls-uk-live.akamaized.net
https://vod-hls-uk-live.akamaized.net
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https://vod-sub-uk-live.bbcfmt.s.llnwi.net
https://vod-dash-uk-live.bbcfmt.s.llnwi.net
http://bbcfmt-ic-97e77300-0d4ca8-vodhlsuklivebbcfmt.s.loris.llnwd.net
https://bbcfmt-ic-97e77300-0345e1-vodhlsuklivebbcfmt.s.loris.llnwd.net
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https://vod-dash-uk.live.cf.md.bbci.co.uk
https://vod-hls-uk.live.cf.md.bbci.co.uk
\
https://b1skybllon.sp.bidi.live.bbc.co.uk
http://b1skybllon.sp.bidi.live.bbc.co.uk
You can check on this video available for 11months .....
https://www.bbcnewsv2vjtpsuy.onion/iplayer/episode/m000qq5j/zog-and-the-flying-doctors
get_iplayer --info --pid=m000qq5j --streaminfo